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Thread: Acceleration Issue (read "lack of sufficient")

  1. #1
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    Acceleration Issue (read "lack of sufficient")

    Ok. So I was out driving, enjoying the lovely weather, and got onto a wide open stretch of road. With the windows open, so I could enjoy the wonderful sound of V8 goodness, I romped on the gas to have a little fun. Well, my fun didn't last long as the engine began to bog down and the "check engine" light started blinking. I let off the gas, coasted for a bit, then the light went off and the engine almost returned to normal. Now I don't have full acceleration at WOT (it hesitates a bit), everything runs fine though as a normal acceleration, and I hear a loud clicking noise under the hood. To me it sounds like a fuel injector, but too loud. I can't pinpoint the exact location (almost seems like it could be near the rear of the motor), but because I can easily hear it and is coming from on top somewhere, I'm fairly certain that I messed up an injector. Does anyone have any thoughts?
    "Beast, Jr."

    2003 300 A, 4.10:1 gear, JLT CAI, Marty tune, Nitto 420S and 555 tires, NGK TR55 plugs, J-mod, Skull lock knobs, and a new windshield

  2. #2
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    when was the last time u changed your fuel filter

  3. #3
    Join Date
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    Check your coils I had a similar issue without the noise if I can remember but go by an advance auto parts get an engine check for free, if it says misfire on any cylinder you got a coil problem

  4. #4
    mcthompson2001 Guest
    it,s not the coil,just got my mm out the shop,it the canister purge valve,plus bad plugs or just your plugs,but do change your fuel filter.And check the cam sensor too.

  5. #5
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    Doubtful it's an injector. If the CEL came on, there should be a stored code. Advance or AutoZone should be able to read the code. Hopefully you haven't launched a plug.
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    Brian (FordNut) FPG # 1458 of 7838
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  6. #6
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    Mike, perhaps I could take a quick look sometime today. Let me know.
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  7. #7
    Join Date
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    If you have clicking, it sounds like a blown out plug.

    Do not panic, it is easily repaired at any competent Ford dealer.

  8. #8
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    do you have a tune on your MM? when was the last time you changed your battery? same thing happened to me when i needed to change my battery, the tune turns off the alternator when at WOT, so with not enough cranking amps in the battery you get that loud clicking sound before it stalls out plus the dash lights up like a Christmas tree...hope it's an easy fix for you like it was for me
    2003 SB Marauder
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  9. #9
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    Ok...

    I don't recall when I last replaced my fuel filter, but I want to say it was in summer of 2008, and I know I haven't put more than 15K-20K miles on it... Supposing I'm correct in my assumption. I have a fond memory of replacing it, considering I had to secure it in place with zip ties.

    I'm still using the factory original battery which has been going strong, even in the sub-zero temps we've seen around Chi-town in the last year or so. But I don't have a tune on it... Yet.

    Zack, if you heard the clicking, I'm sure you might agree. It's very regular and just sounds like an injector, only louder than normal.

    Currently, the check engine light is not on. After it stopped blinking, it just turned off and has remained off.

    I'll definitely take a look at the plugs, though, and make sure that none have some loose. Bob, if you feel like lending your eyes to the endeavor, you're more than welcome!

  10. #10
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    Pm me your addy, I'll have some free time tonight.
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  11. #11
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    First there will be a stored code go to some place and find out what it is

    First there will be a stored code go to some place and find out what it is. Parts store's like Auto Zone will do this for free for you and give you a print out as well.

    Once you do this you can start to track down the problem much easier seeing the PCM is registering the problem or admitting it occured.

    Intermiten problem dosn't mean it went away. Even though there is no longer a solid check engine light the part that failed @ that time might do it again and premanantly fail and might leave you stranded some where.


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  12. #12
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    Im going with the plug issue. They are known to loosen up or shoot out of the head. I already had one loosen up and cause all sorts of issues. The clicking could be the coil shorting or arcing against the walls of the cam cover. Start checking plugs ASAP.

    2003
    MERCURY MARAUDER 300A

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  13. #13
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    Well, I had to head out for a bit, then on the way home (only a few minutes away) things got weird. Heard an odd noise and the car started to vibrate. A couple minutes later I'm home. Check the plugs, and indeed, second one I checked, it came out. So right now it's all cooling off, then I'm going to try and clean it up and see what there is to see. I'm hoping it just unthreaded itself and didn't strip the threads, otherwise I'm SOL (no job means no money for repair).

  14. #14
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    Quote Originally Posted by ledzilla View Post
    Well, I had to head out for a bit, then on the way home (only a few minutes away) things got weird. Heard an odd noise and the car started to vibrate. A couple minutes later I'm home. Check the plugs, and indeed, second one I checked, it came out. So right now it's all cooling off, then I'm going to try and clean it up and see what there is to see. I'm hoping it just unthreaded itself and didn't strip the threads, otherwise I'm SOL (no job means no money for repair).
    I got lucky and it threaded itself out and I was able to reinstall it. Did you look at the plug and check for metal around the threads?

    Its not that expensive to have the threads repaired. Ebay even sells a thread repair kit for pretty cheap but not sure how well it works.

    2003
    MERCURY MARAUDER 300A

    Build Date
    5/31/02
    Sequence#
    #363 of 7839 Black Marauders
    Dyno tested power
    450 RWHP & 405 RWTQ on 93 octane
    Best 1/4 mile time to date
    12.456@109mph
    Visit my Garage
    Blackened300a's Garage



  15. #15
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    I can't reinstall the plug, it's badly damaged. The tip is bent up and there's damage to the threads, but the way the threads are damaged I can't tell if it occurred after the plug became loose or from the act of the plug becoming loose in the first place. I thought I had some old plugs sitting around, try and see if they go back in ok, but I don't have any that I can find.

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